EOS Aura Science Team Meeting Pasadena, California August 27th – 29th, 2019 Mission Operations Working Group (MOWG) Report to the Aura Science Team Presented by Dominic M. Fisher, Aura Mission Director (GSFC – ESMO - Code 428/584) 1 [email protected] Aura Mission Operations Working Group (MOWG) The MOWG, established in 1997, is dedicated to ensuring the health and safety of the Aura satellite (spacecraft bus and instruments) to enable science observations. 22 years of collaboration between the various Ops teams! 08/29/19 Aura IOT / FOT MOWG Report 2 2019 Aura IOT/FOT MOWG Meeting Attendees August 27, 2019 Pasadena, California 08/29/19 Aura IOT / FOT MOWG Report 3 2019 Aura IOT / FOT MOWG Meeting (August 27th, 2019) Name Affiliation Dominic Fisher Aura MD / ESMO / GSFC Bill Guit Aqua MD / ESMO / GSFC Chuck Hudson Aura FSM / EOS / GSFC Jacob Williams Aura Instruments / EOS / GSFC Mirna van Hoek * OMI IOT Lead / KNMI Nico Rozemeijer OMI IOT / KNMI Quintus Kleipool OMI Calibration / KNMI Richard Lay MLS & TES PM / JPL Ryan Fuller MLS IOT / JPL Carl Martin EOS Support / NGAS Elena Trenholme Aura FDS / EOS / GSFC Tiffany Hoerbelt FDS Lead / ESMO / GSFC Ava Afghahi * Aura GNC / EOS / GSFC Ricky Burcat * Aura GNC / EOS / GSFC Joshua Bowman * Aura GNC / EOS / GSFC * Remote Support Mike Stoddard * OMI IAM Lead / NGAS 08/29/19 Aura IOT / FOT MOWG Report 4 Aura IOT / FOT MOWG Key Meeting Objectives • Discuss current Aura spacecraft and instrument status • Highlight any performance trends of note and project any impacts to continued operations • Identify any operational changes that may be needed to ensure continued Aura operations • Express any concerns or potential process improvements (i.e., any interface / ground system issues) • Discuss future Aura spacecraft and instrument plans (i.e., A-train exit plans) • Discuss preparations for 2020 Senior Review 08/29/19 Aura IOT / FOT MOWG Report 5 Aura IOT / FOT MOWG Meeting Agenda (August 27, 2019) Time Topic Presenter 01:30 Welcome / Introduction Fisher / All 01:35 GSFC ESMO Updates Fisher 01:40 Aura Mission Status Fisher 01:50 Aura Spacecraft / EOS Ground System Status Hudson 02:10 EOS FDS Status Trenholme 02:30 NGAS EOS Support Status Martin 02:50 MLS Instrument Status Fuller 03:10 BREAK ( *Group Photo* ) 03:20 OMI Instrument Status Van Hoek TES Instrument Status 03:40 Lay (including Special Topic: Laser Testing Results) 04:00 Summary / Review Actions All 08/29/19 Aura IOT / FOT MOWG Report 6 ESMO Organization Procurement Manager Project Manager Project Admin Eric Newman [210Y] Wynn Watson Selene Annadale Victor Yocco [210Y] Diane Trakas Jim Geiser [210Y] Deputy Project Manager – Operations Project Support Jason Lou [210Y] Greg Dell Vickie Lopez Rogenia Dean [210Y] Deputy Project Manager – Technical Eric Moyer Facilities Financial Manager Deputy Project Manager – Resources Miles Glasgow Darnell Tabb [610.2] Tracy Parlate Ray Baldwin (alternate) Risk Manager Configuration Manager Resource Analysts Eric Moyer [428] Greg Dell Lauren Miller (GPM) Project Scientists Daryl Hutchinson & External Matrix Support Kyle Young FSW: Yvonne Lue [582] Constellation Terra: Kurt Thome [618] (Aqua, Aura, Terra) FDF: John Lynch [595] (Earth Science) Aqua: Claire Parkinson [610] Claire Higgins CARA: Lauri Newman [595] Mike Machado [584] Aura: Bryan Duncan [614] (SORCE, Reimbursables) MA: Ying Shi [372] GPM: Scott Braun [612] SORCE: Tom Woods [LASP] Management System IT Security Implementation Mgr. Darnell Kemper [585] Greg Dell Chris Mishago [585] Flight Dynamics Ground Systems Mission Managers Mission Directors Manager: Tiffany Hoerbelt [595] Manager: Johnny Medina [585] GPM: James Pawloski [428] Aqua: Bill Guit [584] Deputy: Yasir Tufail [595] Deputy: David Hardison [585] Terra: Dimitrios Mantziaras [428] Aura: Dominic Fisher [584] EDOS: Terri Wood [586] SORCE: Eric Moyer [428] ICESat-2: James Jaranyi [584] CCS/FDS: Nancy Smith [583] Networks: Kevin Kranacs [585] 08/29/19 Aura IOT / FOT MOWG Report 7 Aura’s 15th Anniversary! Launch Date: July 15, 2004 08/29/19 Aura IOT / FOT MOWG Report 8 Aura Spacecraft Subsystems • Command & Data Handling (CDH) – Nominal – Formatter Multiplexer Unit (FMU) / Solid State Recorder (SSR) Anomaly » Initial symptoms occurred December 4-18, 2007 » Newest symptoms started in January 2017 and remain active (impacting S-Band HK data capture) • Communications (COMM) – Nominal – Transmitter-B Reflected Power Anomaly (10/17/17, 01/05/18) • Electrical Power System (EPS) – Nominal – Array Regulator Electronics (ARE) Anomalies: » Solar Panel Connector Anomaly – ARE-3C (01/12/05) – loss of ~11 strings » MMOD Strike – ARE-5A (03/12/10) – loss of ~6 strings – ARE Degradation (due to aging): » ARE-5C (9/27/12, 2/4/13), ARE-1A (3/12/10, 11/5/11), ARE-5A (4/25/13), ARE-6A (9/14/13), ARE-4A (9/23/14, 12/8/14), ARE-1C (7/14/17, 12/22/17), ARE-2C (8/18/17) » Estimated that Aura has lost 29 strings of solar cells out of a total of 132 strings (~78.0% remain) » Aura continues to have significant power margin where the life limiting item is fuel • Flight Software (FSW) – Nominal • Guidance, Navigation & Control (GN&C) – Nominal • Propulsion (PROP) – Nominal • Thermal Control System (TCS) – Nominal All subsystems configured to primary hardware 08/29/19 Aura IOT / FOT MOWG Report 9 Summary of Activities (2019) • 0 Spacecraft Bus Anomalies • 2 Instrument Anomalies – 0 OMI Anomalies – 2 MLS Anomalies » 1 Survival Mode Transition (01/27/19, recovered on 01/31/19) – TMON 19 (Stale Telemetry Monitor) triggered while in SAA region – same as July 2018 event » 1 Receiver 2 Anomaly (07/18/19, recovered on 07/24/19) – 190 GHz R2 Receiver signal chain anomaly - identical to the occurrence in October 2012 • 13 Spacecraft Maneuvers – 9 Drag Make-up Maneuvers (DMUMs # 118 – 126) » Routine: 01/17/19, 02/07/19, 04/17/19, 05/08/19, 05/30/19, 06/26/19, 07/18/19, & 08/15/19; Debris Avoidance Maneuver (DAM): 03/19/19 – 4 Inclination Adjust Maneuvers (IAMs #59, #60, #61, #62) » IAM series completed successfully on 03/06/19, 03/13/19, 04/03/19, & 04/10/19 » First series to utilize the new reaction wheel yaw slew approach, instead of thruster based » IAM #59 performance was ~12% COLD due to using simulated reaction wheel inputs » Continue to observe degraded propulsion system performance • 1 Instrument Calibration Maneuvers – MLS Yaw & Moon Scan #14 (03/22/19) 08/29/19 Aura IOT / FOT MOWG Report 10 Summary of Activities (2019) • 9 High Interest Orbital Debris Events (As of 07/31/19) – 8 required planning and screening maneuver options (Tier 3) – 1 required executing a Debris Avoidance Maneuver (DAM) (Tier 4) » Aura vs. 87932, TCA on 03/20/2019 @ 03:17:19 GMT • Partial Government Shutdown (12/22/18 – 01/25/19, 35 days) – Postponed Aura Decommissioning Peer Review (*DRAFT*), Aura Science Team Meeting, ESMO Annual Review, CARA Devolution, Service Management Legacy Adapter Replacement Testing • TES Post-Decommissioning [Laser End-of-Life (EOL) Testing] – TES decommissioning activities completed back on 01/31/18 – Phase 1 Testing – 6-weeks of tests back in June & July 2018 – Phase 2 Testing (ongoing) - Round 1 (November 2018) & Round 2 (April 2019) • CARA Devolution (Shifting Conjunction Assessment over to Mission Operations) – Worked through updating documentation (MOU, Ops Con, Test Plan, etc.) – Continuing with Parallel Operations – working through planned success criteria » CARA Devolution TRR held on 03/25/19; Parallel Ops started on 03/26/19 08/29/19 Aura IOT / FOT MOWG Report 11 Summary of Activities (2019) • Aqua / Aura Maneuver Working Group – Thruster Performance Degradation Investigation – Aqua RWA IAM Development – Aqua/Aura IAM Planning – Develop Retrograde Maneuver Capability for Aqua/Aura • Earth Science Constellation (ESC) Mission Ops Working Group (MOWG) – Last Meeting: June 5th – 7th, 2019 @ Toulouse, France – Next Meeting: December 3rd – 5th, 2019 @ Gilbert, AZ – Present Aura Mission Status to the other member missions – Include updated lifetime and decommissioning plans • TrollSat Ground Station certification – Mitigating potential scheduling conflicts with OCO-2 (Norway antennas) – Building off of successful testing that occurred in 2012 (X-Band downlink only) – EDOS has existing hardware to capture and deliver science data (SMAP) – FOT is identifying and developing ground system updates to accomodate 08/29/19 Aura IOT / FOT MOWG Report 12 Upcoming Planned Activities • Aqua/Aura Maneuver Working Group: – Continue Thruster Degradation Investigation – Aqua RWA Test Maneuver (#1) – November 2019 • EOS Automation (EA) – automation of routine operations » EA Phase 3.3 – Fall 2019 • Conjunction Assessment (CA) - continue to improve DAM execution » Complete parallel operations pilot program between ESMO / CARA – Fall 2019 • October 2019: Fall Inclination Adjust Maneuver (1) – 10/03/19 (#63) • December 2019: Earth Science Constellation (ESC) MOWG (Gilbert, AZ) – Update propellant budget, decommissioning analysis, reliability predictions, etc. • January 2020: ESMO Annual Review #13 • March 2020: Senior Review Proposal submission • March 2020: Spring Inclination Adjust Maneuvers (4) – 3/4/20 (#64), 3/11/20 (#65), 3/18/20 (#66), 3/25/20 (#67), 4/1/20 (B/U) • Summer 2020: Earth Science Constellation (ESC) MOWG (TBC) – Update propellant budget, decommissioning analysis, reliability predictions, etc. 08/29/19 Aura IOT / FOT MOWG Report 13 Fuel Usage: Actual & Predicted (Baseline Fuel Plan – Analysis Updated August 2019) Fuel Remaining Definitve Predicted Fuel Fuel Limit (Constellation Exit + Lower Perigee